224321 has 4 divisors (see below), whose sum is σ = 226644. Its totient is φ = 222000.

The previous prime is 224317. The next prime is 224327. The reversal of 224321 is 123422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190096 + 34225 = 436^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 224321 - 2² = 224317 is a prime.

It is a super-2 number, since 2×224321² = 100639822082, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 224296 and 224305.

It is not an unprimeable number, because it can be changed into a prime (224327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (56661).

2²²⁴³²¹ is an apocalyptic number.

It is an amenable number.

224321 is a deficient number, since it is larger than the sum of its proper divisors (2323).

224321 is a wasteful number, since it uses less digits than its factorization.

224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its digits is 96, while the sum is 14.

The square root of 224321 is about 473.6253793875. The cubic root of 224321 is about 60.7607758606.

Adding to 224321 its reverse (123422), we get a palindrome (347743).

It can be divided in two parts, 224 and 321, that added together give a palindrome (545).

The spelling of 224321 in words is "two hundred twenty-four thousand, three hundred twenty-one", and thus it is an iban number.